Rotary selector switch



Jan, 6, E925.

v G. DEAKIN ROTARY SELECTOR swIfccH Filed Sept. '7, 1922 l, f/g/ 4 Patented Jan. 6, 1925.

een@ makin, swimwear, v,eensinn., aesineten,frov ,con-.

i Rome-Y, satema-emmen, 1^ Y' animation medseetefnb'er 7, 1'92'2. serial im. 1586,621.

To all wir-omit may eminem.'

4Be 'it known that I., 'GERALD @mining-1@ citizen 4of `AthelUnited #States aoff America,

-' residing :at Antwerp', in -fthe `Kingdom 'of Belgium, have invented 'certain new 'and Afuse- 'fnfl improvements :im Rotary f Seletor ASwitches,"of which fthe vilollowing :is a ftuflll, clear, aconcise, and 'exact 'description' y' n l 'This @invent-ion relates :te [an automatic selecting :switch or the rotary f'typefadapted oruse .in telephone systems. v f

The 'obj ect `*of this invention iis fto 'prowid'e `an improved yarrangement v#for mountinlgthe brush xcarriage of such aswitch.l y.

Heretofore, the bushings lof 'the brush cair-v lringe were rigidly fastened en the sappening framework, but due 'to the 1"distortion'eff said framework, during the assembly :and fastening operation'of sa'idj'bearirrg on their support, it resulted Iin :the disaligning off the hearings 'whieh effected undue strain and wear nathe journals et theishat. y i

i -`Inth'e present :invention :the .brush .earL

ringe is pro-vided with .selflaligningfibearuings .mounted direetly on or supportedfby V.the :framework off the terminaban, whereby an' 'accurate alignment et lthe, bearings is .automatically secured. The self-'aligning bearing. feonsists of fsuitableballs which are =dfriflllfed to 'form ia beaning'for the rotatable shaft,r the balls being seated iin rea'nied hples fdfrilled iin )the lsnpporting framework 'This drilling :and reaming operation lis regulated by the position of the terminal contat's of the arc with respect to the framework on whioh'the bea-ringslare mounted. A spring clip holds each ball firmly seated in the reamed hole while it is free to turn suliiciently to permit the balls to align themselves relative to the axis of the shaft.

The invention will be more clearly understood by reference to the accompanying drawings in which Fig. 1 represents a typical rotary switch mechanism employing the invention. Fig. 2 represents a detail of the arc` framework showing the reamed holes in which the self-aligning bearings sit and Fig. 3 represents a cross section of the framework on the line AA of Fig, 2.

Referring to the drawings, the terminal arc arranged on any suitable mounting (not shown), comprises a bank of terminal contacts 3 of well known form held together between plates 4 by means of screws or bolts 5. Flanges 6 are formed on or attached to the plates-'4 central to fthe'larc "for `the :purpose :of .providing v'a f beading support-'for "the bru'sh earriagefshatt 7' :wh' 4 spherical shaped .hearings f8' eatedyin ireamed holes :9,bo1ed inthe fla'rifgfes 16.1- Tih'e'balls 8 'each havefafdiametrical liolelftherethroughte -receive fand `1`lvform a bearing 'for the ish-aft '17. Spring clips 110i press upon th'e :balls i8 and fs'ame 'time permittngthem fto tur-n' suiiieientto align `then iselves relative-tto; the'lfa'xis :of :the shfatt. jflllire 1Iholes' 9 Yare "bofredka'nd reamed With respot ftothe' -aro, these operations being most Conveniently.performed when 'the za'rc is held in a :jifg which ensures :that 'thecommenanisiieftheib'earings 'f8 when seated in the reained holes isiexaetly @central -wtherespecttto thefarc. l

Such 'a constnuetion provides al switch- -mechanism ywhich V:may 'be' #assembled iwijtheut other than erdinaryjcare and at vfthe same timel a' 'penieetfalgnment of the Abrushes and the t'erminal-'"contant/s. Further fthe fbrnsh carriage orrb'earings Jor lo'otlil may be freely interchanged withotltlhe necese fet nism employing a brush carriage revolving 1n a bearing, Without in any way departing from the broad idea herein disclosed.

What is claimed is:

l. In an adjustable bearing, the combination of a shaft with a ball perforated to slidably support said shaft within its perforation, a supporting member having a socket shaped hole drilled therein to provide a seat for said ball, and a' resilient member for retaining said ball in said seat to permit said ball to be rotated to align its perforation with the axis of rotation of said shaft while retained in said seat.

2. In a bearing, the combination of a shaft, a ball perforated and adapted to slidably support said shaft Within its perforation, a supporting member having a socket shaped bearing drilled therein to support said ball, and a resilient member for retaining said ball in saidsocket shaped bearing adapted to be deflected to permit said ball to be removed from saidsocket shaped bear-A ing and displaced from'said shaft.

3. Ina bearing, the combination. of-a shaft, a ball perforated and adapted to slidably support said shaft Within its perforation, a supporting member having a socket shaped bearing for said ball drilled therein Aand Which prevents the longitudinal movement of said ball on said shaft and a resilient member for retaining 'said-ball in said socket shaped bearing. n

4. In anadjustable bearing, the combination of a shaft, a ball perforated; and adapted .to slidably support said shaft Within 4its lation to the axis of rotation of said shaft and in alignment with each other, and a resilient member for retaining each of said balls in its bearing, said balls being rotatable in their bearings to align their respective perforations With the axis of rotation of said shaft.

6. In a mechanical device, a shaft, bearl ings for supporting said shaft, each of said bearings consisting of a perforated sphere adapted to slidably support said shaft Within its perforation, supporting members each having a socket shaped hole drilled therein 'gto provide a. seat for each of said bearings,

and a resilient member'mounted on each of l vsaid supportingy members for retaining each of said bearings in its respective seat, said bearings adapted to be adjusted While retained in their seats to align vtheir perforations so that'l said 'shaft can be inserted through said bearings Without any distortion of said shaft or the placing of undue strain upon its journals.

v7. In a bearing, vthe combination of a rotatable shaft, perforated balls adapted to lslidably support said shaft Within their perforations, supporting members, bearings in the form' of socket shaped holes drilled in said supporting'members, resilient members for retaining said balls in their respective bearings and adapted to be deflected Whereby said shaft and said bearings may be easily removed for replacement.-y

L8. In a mechanical device, a rotatable shaft, adjustable bearings comprising perforated balls adapted to slidably support said shaft, supporting members, bearings for said balls formed by drilling a socket shaped hole in each of said supporting members in angular relation thereto and in angular relation to the axis of rotation of said shaft, and resilient members for retaining said balls in their'v respective bearings and' cooperating With the bearings drilled in said 'supporting members to entirely support said balls and shaft.

9. In a bearing, Athe combination of a shaft, perforated balls slidable thereon, sup-- porting members having bearings for said balls in the form of socket shaped holes drilled therein in angular relation thereto and in angular relation to the axis of rotat'ion of said shaft, and resilient members for retaining said balls in their respective bearings, said resilient members each having a hole drilled therein adapted to embrace `a portion of said balls and cooperating with the bearings of said balls to entirely support said balls and shaft.

In Witness whereof, I hereunto subscribe my name this 18th day of August, A. D., 1922.

GERALD DEAKIN. 

